U.S. patent application number 12/079713 was filed with the patent office on 2009-10-01 for mini fob with improved human machine interface.
Invention is credited to Carsten Hildebrand, Dale L. Partin, Michel F. Sultan.
Application Number | 20090243791 12/079713 |
Document ID | / |
Family ID | 41116240 |
Filed Date | 2009-10-01 |
United States Patent
Application |
20090243791 |
Kind Code |
A1 |
Partin; Dale L. ; et
al. |
October 1, 2009 |
Mini fob with improved human machine interface
Abstract
A remote control device for a vehicle remote access system
includes the housing, an input switch for selecting a vehicle
control function, a control, a transmitter for transmitting a
wireless signal from the control to the vehicle remote access
system, and an attachment for mounting the housing on or
integrating it with a separate article carried or worn by a user.
The input switch can be a single pressible member, the number of
time spaced sequential activations and the duration of each
activation of which is determined by the control member to indicate
a selected one of a plurality of distinctive vehicle control
functions. The input switch member can alternately be a slidable or
a rotary multi-position switch in which each position designates a
distinct vehicle control function. A rechargeable battery can be
carried in the housing and receives recharging electric power from
a plug on the housing which is connectable to an external power
supply, a solar cell carried on the housing, or an inductive
secondary transformer coil carried in the housing.
Inventors: |
Partin; Dale L.; (Ray
Township, MI) ; Sultan; Michel F.; (Troy, MI)
; Hildebrand; Carsten; (Wuppertal, DE) |
Correspondence
Address: |
DELPHI TECHNOLOGIES, INC.
M/C 480-410-202, PO BOX 5052
TROY
MI
48007
US
|
Family ID: |
41116240 |
Appl. No.: |
12/079713 |
Filed: |
March 28, 2008 |
Current U.S.
Class: |
340/5.2 ;
341/176 |
Current CPC
Class: |
G07C 9/00309 20130101;
G08C 17/00 20130101; G07C 9/00944 20130101 |
Class at
Publication: |
340/5.2 ;
341/176 |
International
Class: |
H04L 17/02 20060101
H04L017/02; H04B 1/00 20060101 H04B001/00 |
Claims
1. A vehicle control apparatus adapted to control at least one
vehicle control function, the apparatus comprising: a remote access
receiver adapted to be carried on the vehicle and generating
signals to operate the vehicle control functions; a remote
communication apparatus including: a housing; an input switch on
the housing for selecting at least one vehicle control functions; a
control carried in the housing, the control generating a signal
associated with a vehicle control function selected by the input; a
transmitter carried in the housing and connected to the control for
transmitting a signal to the remote access apparatus on the
vehicle; and an attachment, the attachment mounting the housing on
a separate article which is one of carried by and worn by the
user.
2. The apparatus of claim 1 wherein the attachment is one of a
clip, a snap, a band with joinable ends, an adhesive, a pin, a
tack, and a magnetic connector the article.
3. The apparatus of claim 1 wherein the attachment functions to one
of an integrating the housing with the article and attaching the
housing to the article.
4. The apparatus of claim 1 further comprising: the attachment
enabling at least partial concealment of the housing on the
article.
5. The apparatus of claim 1 wherein the input switch comprises: a
multifunction switch for selecting at least two vehicle control
functions.
6. The apparatus of claim 1 further comprising: a battery power
source carried in the housing and providing power to the control
and the transmitter.
7. The apparatus of claim 6 wherein the battery power source is a
rechargeable battery.
8. The apparatus of claim 7 wherein the rechargeable battery
includes one of a connection to a plug for supplying recharging
power to the battery externally of the housing, a secondary
transformer inductive coil carried in the housing for supplying
current to the battery in response to a proximate association with
an external current carrying transformer primary coil, and a solar
cell carried on the housing and connected to the battery for
supplying solar recharging power to the battery.
9. The apparatus of claim 6 further comprising: a battery power
level detector carried in the housing and generating the signal
indicative of a low battery power level; and an indicator carried
on the housing and indicating low battery power level.
10. The apparatus of claim 1 wherein the attachment mounts the
housing on at least one of a purse, a handbag, a briefcase, a
watchband, a belt, a badge worn by a user, a piece of jewelry worn
by a user, an article of clothing, a pen, a pencil, and a key
case.
11. The apparatus of claim 1 wherein the attachment mounts the
housing on at least one of a cellular telephone holder, a cellular
telephone case, a cellular telephone holster, a cellular telephone
battery cover, a cellular telephone bud, and cellular telephone
head gear.
12. The apparatus of claim 1 wherein the attachment mounts the
housing on at least one of a cellular telephone ear bud and, cell
phone head gear.
13. The apparatus of claim 1 wherein attachment integrates the
housing with a vehicle key.
14. The apparatus of claim 13 wherein the housing is at least 20%
shorter than an exposed length of the key.
15. The apparatus of claim 13 wherein the housing is at least 30%
shorter than an exposed length of the key.
16. The apparatus of claim 1 further comprising: an optical
function indicator, carried on the housing, for indicating a
vehicle function selected by the input.
17. The apparatus of claim 1 further comprising: a visible
indicator, carried on the housing, for indicating that a selected
vehicle control function transmitted by the transmitter to the
vehicle remote access receiver has been received by the vehicle
remote access receiver.
18. The apparatus of claim 1 further comprising: an RFID circuit
carried by the housing and generating an RFID signal.
19. The apparatus of claim 18 wherein: the RFID signal adapted for
use to at least one of unlock the driver's door, unlock all the
doors, lock all doors, and start the vehicle.
20. The apparatus of claim 1 wherein the input switch comprises: at
least one of a pressible member, a slidable multi-position member,
and a rotary multi-position member.
21. The apparatus of claim 19 wherein: the slidable member and the
rotary member each have multiple positions, each position
associated with a distinct vehicle control function; and a selector
switch, carried on the housing, for inputting a signal from the
input switch member corresponding to the position of and the
control function associated with the input switch member to the
control.
22. The apparatus of claim 20 further comprising: a second input
switch carried on the housing, the second input switch coupled to
the control and generating a signal to the control, in response to
which, the control changes the vehicle control function associated
with a first input switch member.
23. The apparatus of claim 1 wherein: the control is responsive to
at least one of the number of closely time spaced sequential
activations of the input switch and the duration of each activation
to select one of at least two of the vehicle control functions.
24. The apparatus of claim 1 wherein: the housing is a separable
battery cover of a cellular telephone, the attachment mounting the
input switch, the control, and the transmitter on the battery
cover.
25. The apparatus of claim 24 further comprising: connections
carried by the battery cover and coupled to the control, for
supplying electric power from a cellular telephone battery carried
in the battery cover to the control.
26. The apparatus of claim 1 wherein: the housing is a thin card;
and the input switch, the control, and the transmitter are mounted
on the card.
27. The apparatus of claim 26 wherein: the card is one of a credit
card and a debit card.
28. The apparatus of claim 1 further comprising: the fob including
means responsive to a signal received from the vehicle concerning
vehicle status, for giving an indication to the user of at least
one of the presence of a vehicle system alert and the nature of the
vehicle system alert using at least one of an optical indicator on
the housing of the fob, a vibration of the housing, and an audible
beep.
29. A vehicle control apparatus adapted to control at least two
vehicle control functions, the apparatus comprising: a remote
access receiver adapted to be carried on the vehicle and generating
signals to operate the vehicle control functions; a remote
communication apparatus including: a housing; a multifunctional
input switch on the housing for selecting at least one of two
vehicle control functions; a control carried in the housing, the
control generating a signal associated with a vehicle control
function selected by the input; and a transmitter carried in the
housing and connected to the control for transmitting a signal to
the remote access apparatus on the vehicle.
30. The apparatus of claim 29 further comprising: an attachment
enabling a user to attach the housing to one of an article that is
worn and carried by the user.
31. The apparatus of claim 30 wherein the attachment comprises: at
least one of a tab, Velcro.TM., and an adhesive.
32. The apparatus of claim 30 wherein the attachment comprises: at
least one of a clip, a snap, a band with joinable ends, and a
magnetic connector.
33. The apparatus of claim 30 further comprising: the attachment
enabling at least partial concealment of the housing on the
article.
34. The apparatus of claim 29 further comprising: an optical
function indicator, carried on the housing, for indicating a
vehicle function selected by the input.
35. The apparatus of claim 29 wherein the multifunctional input
switch comprises: at least one of a pressible member, a slidable
multi-position member, and a rotary multi-position member.
36. The apparatus of claim 35 wherein: the slidable member and the
rotary member each have multiple positions, each position
associated with a distinct vehicle control function; and a selector
switch, carried on the housing, for inputting a signal from the
input switch member corresponding to the position of and the
control function associated with the input switch member to the
control.
37. The apparatus of claim 29 further comprising: a second input
switch carried on the housing, the second input switch coupled to
the control and generating a signal to the control, in response to
which, the control changes the vehicle control function associated
with a first input switch member.
38. The apparatus of claim 29 wherein: the control is responsive to
at least one of the number of time spaced sequential activations of
the input switch and the duration of each activation to select one
of at least two of the vehicle control functions.
39. The apparatus of claim 29 wherein the attachment mounts the
housing on at least one of a purse, a handbag, a briefcase, a
watchband, a belt, a badge worn by a user, a piece of jewelry worn
by a user, an article of clothing, a cellular phone holder, a
cellular telephone case, a cellular telephone holster, a key case,
a cellular telephone ear bud, and cellular telephone head gear.
40. The apparatus of claim 29 wherein the housing is integrated
with a vehicle key and the housing is at least about 20% to about
30% shorter than an exposed length of the key.
41. The apparatus of claim 29 further comprising: the fob including
means, responsive to a signal received from the vehicle concerning
vehicle status, for giving at indication to the user of at least
one of the presence of a vehicle system alert and the nature of the
vehicle system alert using at least one of an optical indicator on
the housing of the fob, a vibration of the housing, and an audible
beep.
42. The apparatus of claim 30 wherein: the attachment functions to
one of an integrating the housing with the article and attaching
the housing to the article.
43. A vehicle control apparatus adapted to control at least one
vehicle control function, the apparatus comprising: a remote access
receiver adapted to be carried on the vehicle and generating
signals to operate the vehicle control functions; a remote
communication apparatus including: a housing; only one input switch
on the housing for selecting at least one vehicle control function,
a control carried in the housing, the control generating a signal
associated with a vehicle control function selected by the input; a
transmitter carried in the housing and connected to the control for
transmitting a signal to the remote access apparatus on the
vehicle; and an attachment, the attachment mounting the housing on
a separate article which is one of carried by and worn by the
user.
44. The apparatus of claim 43 wherein: the one input switch is one
of a single pressible input switch, a slider switch, and a rotary
switch which is adapted to at least one of unlock one vehicle door,
unlock at least two vehicle doors, lock the vehicle doors, and
activate the vehicle horn and lights, depending upon the number and
duration of time spaced activations of the one input switch.
45. The apparatus of claim 43 wherein: the one input switch is one
of a single pressible input switch, a slider switch, and a rotary
switch which is adapted to only unlock one of a single vehicle door
and multiple vehicle doors.
46. The apparatus of claim 43 wherein: the one input switch is
activated by one of a flexure of the housing and a squeezing of the
housing.
47. The apparatus of claim 43 wherein the attachment comprises: at
least one of a tab, Velcro.TM., an adhesive, a clip, a snap, a band
with joinable ends, and a magnetic connector.
48. The apparatus of claim 43 further comprising: the attachment
enabling at least partial concealment of the housing on the
article.
49. The apparatus of claim 43 wherein: the attachment functions to
one of an integrating the housing with the article and attaching
the housing to the article.
50. The apparatus of claim 43 wherein the attachment mounts the
housing on at least one of a purse, a handbag, a briefcase, a
watchband, a belt, a ring, a badge worn by a user, a piece of
jewelry worn by a user, an article of clothing, a cellular phone
holder, a cellular telephone case, a cellular telephone holster, a
pen, a pencil, and a key case.
51. The apparatus of claim 43 wherein the housing is integrated
with a vehicle key and the housing is at least 20% shorter than an
exposed length of the key.
52. The apparatus of claim 43 wherein the housing is integrated
with a vehicle key and the housing is at least 30% shorter than an
exposed length of the key.
53. The apparatus of claim 43 wherein: the control is responsive to
at least one of the number of time spaced sequential activations of
the one input switch and the duration of each activation to select
at least one of the vehicle control functions.
54. The apparatus of claim 43 further comprising: an RFID circuit
carried by the housing and generating an RFID signal.
55. The apparatus of claim 54 wherein: the RFID signal adapted to
at least one of unlock the driver's door, unlock all the doors,
lock all doors, and start the vehicle.
56. The apparatus of claim 43 further comprising: a battery power
source carried in the housing and providing power to the control
and the transmitter, wherein the battery power source is one of a
non-rechargeable battery and a rechargeable battery.
57. The apparatus of claim 56 wherein the rechargeable battery
includes one of a connection to a plug for supplying recharging
power to the battery externally of the housing, a secondary
transformer inductive coil carried in the housing for supplying
current to the battery in response to a proximate association with
an external current carrying transformer primary coil, and a solar
cell carried on the housing and connected to the battery for
supplying solar recharging power to the battery.
58. The apparatus of claim 43 wherein the attachment mounts the
housing on at least one of the housing of a cellular telephone ear
bud and a cellular telephone headgear.
59. The apparatus of claim 58 comprising: means, coupled to one of
the ear bud and the headgear, for supplying electrical power to the
control and the transmitter.
60. A vehicle control apparatus adapted to control at least one
vehicle control function, the apparatus comprising: a remote access
transceiver adapted to be carried on the vehicle and generating
signals to operate the vehicle control functions; a remote
communication apparatus including: a housing; an RFID circuit
carried by the housing and generating an RFID signal used to
control the vehicle functions, wherein the RFID circuit
communicates with the transceiver for transmitting the signal to
the remote access transceiver on the vehicle; and an attachment,
the attachment adapted for mounting the housing on a separate
article which is one of carried by and worn by the user.
61. The apparatus of claim 60 wherein: the RFID is adapted to at
least one of unlock the driver's door, unlock all the doors, and
lock all doors.
62. The apparatus of claim 61 wherein: the RFID signal is adapted
to start the vehicle.
63. The apparatus of claim 60 wherein the attachment mounts the
housing on at least one of a purse, a handbag, a briefcase, a
cellular telephone holder, a cellular telephone case, a cellular
telephone holster, a watchband, a belt, a badge worn by a user, a
piece of jewelry worn by a user, an article of clothing, a pen, a
pencil, and a key case.
64. The apparatus of claim 60 wherein: the attachment mounts the
housing a thin card.
65. The apparatus of claim 64 wherein: the card is one of a card
having an overall shape of a credit card, a credit card and a debit
card.
66. The apparatus of claim 60 wherein the attachment mounts the
housing on at least one of a cellular telephone battery cover, a
cellular telephone housing, a cellular telephone battery, a
cellular telephone interior part, a cellular phone ear bud, and
cellular phone head gear.
67. The apparatus of claim 60 further comprising: a battery power
source carried in the housing and providing power to the RFID
circuit and the transmitter.
68. The apparatus of claim 65 wherein the battery power source is a
rechargeable battery.
69. The apparatus of claim 67 wherein the rechargeable battery
includes one of a connection to a plug for supplying recharging
power to the battery externally of the housing, a secondary
transformer inductive coil carried in the housing for supplying
current to the battery in response to a proximate association with
an external current carrying transformer primary coil, and a solar
cell carried on the housing and connected to the battery for
supplying solar recharging power to the battery.
70. The apparatus of claim 60 further comprising: an electrical
power source adapted to be carried on the article to which the
housing is attached; and electrical connections between the RFID
and the power source.
71. The apparatus of claim 60 wherein the RFID circuit receives
electric power from an antenna on the vehicle, when the housing is
in proximity with the vehicle.
72. The apparatus of claim 60 further comprising: the attachment
enabling at least partial concealment of the housing on the
article.
73. The apparatus of claim 60 wherein the attachment comprises: an
adhesive backing on the housing; a removable cover on the backing,
the cover being removable from the backing to enable the housing to
be attached to a separate article.
74. The apparatus of claim 60 wherein: the attachment functions to
one of an integrating the housing with the article and attaching
the housing to the article.
Description
BACKGROUND
[0001] The present invention relates, in general, to remote access
systems and, in particular, to fobs used with remote access
systems.
[0002] Remote keyless entry (RKE) fobs are used by a significant
number of vehicle owners to remotely control selected vehicle
functions, such as unlocking or locking vehicle doors, unlocking
the rear hatch or trunk, remotely starting the vehicle, activating
the vehicle horn and lights, opening and closing sliding doors or a
rear lift gate.
[0003] Remote keyless access systems require a fob which is a
discrete component, typically attached to the vehicle key ring or
integrated in an enlarged housing mounted on the end of the vehicle
key. As such, fobs are typically kept in a person's pocket or purse
and must be retrieved for use. This takes time and can be difficult
if the person is carrying a child, groceries, etc., particularly in
inclement weather.
[0004] The fobs also take up space and are one more thing for a
person to carry along with other nomadic, mobile devices, such as a
cell phone, a PDA, etc.
[0005] One way to reduce the number of separate articles carried in
a person's pocket or purse is to integrate an RKE fob with a cell
phone where software in the cell phone is used to enable the cell
phone to communicate with the vehicle remote keyless entry system
through the cell phone towers and cell phone carrier. Typically,
such an integrated device would require a user to remove the cell
phone from its holster, or from the user's pocket, open the phone
if it is a flip phone, and then input one or more commands, such as
by pressing buttons or keys on the cell phone keyboard that would
place a call to the vehicle RKE system instructing the RKE system
to perform the desired functions. This process, however, is more
difficult than simply removing a fob from one's pocket or purse and
pressing one button to send a command to the vehicle RKE system
18.
[0006] It would be desirable to provide the remote keyless entry
(RKE) fob as an integrated device exteriorly on an article carried
or worn by a person to allow easy one-hand access to the fob inputs
and/or outputs to simplify the human machine interface between the
user and the fob.
[0007] It would also be desirable to provide a remote keyless entry
(RKE) fob that is small in size so as to be able to be attached to
or integrated with an article carried or worn by a person wherein
the RKE fob is optionally able to serve as a back-up or auxiliary
fob for a vehicle. The small fob size enhances the human machine
interface between the user and fob since its small size means that
it does not take up much space or add appreciable bulk to articles
that a person normally carries or wears.
SUMMARY
[0008] A vehicle function control apparatus includes a remote
access receiver mountable on a vehicle and generating signals to
operate vehicle control functions, and a remote communication
apparatus including a housing, a single or multifunction input
means or switch on the housing for selecting at least one vehicle
control function, a control carried in the housing, and generating
a signal associated with a vehicle control function selected by the
input switch, a transmitter carried in the housing and connected to
the control for transmitting a signal to the remote access
apparatus on the vehicle, and an attachment mounting the housing on
a separate article which carried or worn by the user.
[0009] The attachment can be one of a clip, a snap, a band with
joinable ends, a magnetic connector sewn components, etc. The
attachment can also be done by integrating the fob with the article
that it is attached to. The attachment can mount the housing on at
least one of a cellular telephone holder case, holder or holster, a
purse, a briefcase, a watchband, a cellular telephone battery
cover, a belt, a badge worn by a user, a piece of jewelry worn by a
user, a vehicle key, or a key case. The attachment can include the
fob housing already attached to an article that is to be worn or
carried, or it can include the fob housing with an attachment means
suitable for the user to attach the fob to a desired article that
is worn or carried.
[0010] The small size of the fob facilitates its attachment or
mounting to an article in a manner that at least partially or
entirely conceals the fob from view.
[0011] A battery power source is carried in the housing and
provides electric power to the control and the transmitter. The
battery power source can be a rechargeable battery. The
rechargeable battery can include a plug connection for supplying
recharging power to the battery from a power source externally of
the housing, a secondary transformer inductive coil carried in the
housing for supplying current to the battery in response to
proximate association with an external current carrying transformer
primary coil, or a solar cell carried on the housing and connected
to the battery for supplying recharging power to the battery.
[0012] The apparatus can also include an optical function
indicator, carried on the housing, for indicating a vehicle
function selected by the input switch.
[0013] The apparatus can also include a battery power level
detector carried in the housing and generating the signal
indicative of a low battery power level and an indicator carried on
the housing indicate a low battery power level.
[0014] The apparatus, when configured for bi-directional
communication, can also include a visual indicator, carried on the
housing, for indicating that a selected vehicle control function
transmitted by the transmitter to the vehicle remote access
receiver has been received by the vehicle remote access
receiver.
[0015] The apparatus can include an RFID circuit carried by the
housing and generating an RFID signal. The power to operate the
RFID circuit may come from a battery inside the housing, or from an
antenna on the vehicle, when the housing is close to the vehicle,
or alternatively, the power may come from the article the RFID
circuit is attached to, for example, if an RFID circuit is attached
to the inside or outside of a cellular telephone, the cellular
telephone battery may be used to power the RFID device.
[0016] The input switch can be a pressible member, a slidable
multi-position member, or a rotary multi-position member. The input
switch can also be a slidable or rotary member and have multiple
positions, each associated with a distinct vehicle control function
and a selector member or input switch, carried on the housing, for
inputting a signal from the input member corresponding to the
position of and the control function associated with the input
switch member to the control. The input switch can be a pressible
member, in which different functions can be determined by the
number and duration of closely spaced presses or inputs.
[0017] The apparatus can also include a second input switch carried
on the housing, and coupled to the control to generate a signal to
the control, in response to which the control changes the vehicle
control functions associated with a first input switch member.
[0018] The control can be responsive to at least one of the number
of sequential activations and the duration of each activation of
the input switch members to select one of the vehicle control
functions.
[0019] In one aspect of the apparatus, the housing is a separable
battery cover of a cellular telephone, the attachment mounting the
input switch, the control, and the transmitter on an exterior
surface of the battery cover. Connections may also be carried by
the battery cover and coupled to the control for supplying electric
power from a cellular telephone battery carried by the battery
cover to the control.
[0020] In one aspect, the housing has a thin, credit card shape,
with the input switch, the control, and the transmitter mounted on
the card. The card may be a credit or debit card.
BRIEF DESCRIPTION OF THE DRAWING
[0021] The various features, advantages and other uses of a fob
with improved human machine interface will become more apparent by
referring to the following detailed description and drawing in
which:
[0022] FIG. 1A is a plan view of one aspect of a remote keyless
entry (RKE) fob;
[0023] FIG. 1B is a side elevational view of one aspect of the fob
shown in FIG. 1A;
[0024] FIG. 1C is a side elevational view of another aspect of the
fob shown in FIG. 1A;
[0025] FIG. 2 is a plan view of another aspect of an RKE fob;
[0026] FIG. 3 is a plan view of another aspect of an RKE fob;
[0027] FIG. 4 is a plan view of another aspect of an RKE fob;
[0028] FIG. 5 is a plan view of another aspect of an RKE fob;
[0029] FIG. 6 is a plan view of another aspect of an RKE fob;
[0030] FIG. 7 is a plan view of another aspect of an RKE fob;
[0031] FIG. 8 is a perspective view showing the mounting of a fob
depicted in FIG. 1A in a ring;
[0032] FIG. 9 is a perspective view showing the mounting of a fob
on a wristwatch band;
[0033] FIG. 10 is a cross sectional view generally taken along line
10-10 in FIG. 9;
[0034] FIG. 11A is a plan view of another aspect of a fob
integrated with a mobile cellular telephone holster;
[0035] FIG. 11B is a side elevational view of the fob and holster
shown in FIG. 11A;
[0036] FIG. 12A is a plan elevational view of another aspect of a
fob integrated with a key case;
[0037] FIG. 12B is a side elevational view of the fob and key case
shown in FIG. 12A;
[0038] FIG. 13 is a plan view of another aspect of a fob mounted in
a cellular telephone battery cover;
[0039] FIG. 14 is a block circuit diagram showing an exemplary
circuit employed in an RKE fob; and
[0040] FIG. 15 is a front view of an RKE fob integrated with a
credit card sized plastic member;
[0041] FIG. 16 is a perspective view of a vehicle incorporating a
vehicle remote access control apparatus;
[0042] FIG. 17 is an elevational view of a fob mounted on the rear
surface of a pin or broach; and
[0043] FIG. 18 is a schematic diagram of an RFID integrated with a
fob.
DETAILED DESCRIPTION
[0044] Referring now to the drawing, various aspects of a remote
keyless entry (RKE) fob, hereafter referred to generally as a
"fob", will be initially described. Then, the mounting of the
various aspects of the fob in various articles worn or carried by a
user will be presented.
[0045] It will be understood that the various aspects of the fob
can generally be used with any fob mounting arrangement and/or any
fob power source, including various rechargeable power sources, and
with unidirectional or bidirectional fob communication modes.
[0046] Referring briefly to FIG. 16, an exemplary base station 18
is mounted in a vehicle 19. The base station 18 is referred to as a
remote keyless entry base station or RKE 18 which includes a
receiver for receiving wireless electronic signals from a
transmitter carried in a fob 20 upon activation of an input switch
member, such as a pushbutton 24 mounted in a fob housing 22. The
wireless signal transmitter transmits signals which can be a radio
frequency (RF) signal to the RKE 18 when the user carrying the fob
20 is in range or a predetermined distance with respect to the RKE
18. The receiver of the RKE 18 is directly or indirectly
electrically coupled to one or more systems or devices in the
vehicle 19 that execute vehicle control functions. A processor or
controller is coupled to the receiver to decode the wireless
control signal from the fob 20 so that the requested vehicle
control function can be determined and executed. For example, the
RKE controller may be coupled to vehicle door and/or rear hatch or
trunk locking mechanisms, a vehicle alarm system, interior or
exterior vehicle lights and vehicle horn, a vehicle alarm system,
an ignition start system, and window closure mechanisms. The
electrical connection between the RKE controller and the vehicle
function mechanisms may be implemented through a vehicle body or
engine controller to which each of the control function mechanisms
are coupled.
[0047] The receiver in the RKE 18 as well as the transmitter in the
fob 20 may be provided for bidirectional transmission as
transceivers or transponders. In such an arrangement, the fob 20
may include a visual display, such as indicator lights, a buzzer or
beeper, or an LCD graphical display panel, to convey information to
the user relating to vehicle function status, such as engine
running, door lock status, intrusion alarm activation, interior
temperature, etc.
[0048] As shown in FIGS. 1A, 1B, and 1C, one aspect of a fob 20 is
depicted which includes a housing 22 containing the fob control
circuit, and power supply, as generally shown in FIG. 14, and an
input switch member 24, which, in this aspect, is a single
depressible or touch responsive pushbutton 24.
[0049] The pushbutton 24 may be any suitable pushbutton which
generates an electrical signal through a contact, switch, etc., to
the fob circuit when it is touched, depressed or otherwise
activated. As shown in FIG. 1B, the pushbutton 24 may be at least
partially raised or extending beyond the outer surface of the
housing 22. Alternately, as shown in FIG. 1C, a pushbutton 26 may
be mounted in a recess 28 in a fob housing 30 to minimize the
potential for inadvertent activation of the pushbutton or input
switch member 26.
[0050] The input switch member or pushbutton 24, 26 may take any
shape, such as the depicted circular shape, as well as polygonal,
including square, triangular, rectangular, and or arcuate curved
shapes.
[0051] Another aspect of a fob 40 as shown in FIG. 2, in which a
fob housing 42 containing the fob control circuit has an optional
tab 44 to facilitate connecting the fob housing 42 to another
object. One of more tabs 44 may be used, for example, to facilitate
sewing the fob to an article of clothing. Or a single large tab 44
with multiple openings may be used. The fob 40 may also be attached
to a purse, briefcase or sleeve outside the opening or just inside
to balance concealment with convenient access. The exterior of
items such as a purse or article of clothing is thus generalized to
include portions of such items that are very quickly and easily
accessible, or "nearly" exterior. The fob 40 has a single input
switch member 46 as well as an output element 48, such as an
optical display or other visual indicator which displays the
vehicle control function selected by the user through the fob input
switch member 46.
[0052] In the fobs 20 and 40 shown in FIGS. 1A, 1B, 1C, and 2, the
single input switch member or pushbutton 24 and 46 may be activated
or pressed to input switch various coded commands to the fobs 20
and 40 via the number and/or duration of the closely spaced input
switch member depressions or activations. For example only, a
single short input, such as a single short depression or touch of
the input switch member or pushbutton 24 and 46 could cause the
control circuit of the fob 20 or 40 to generate and transmit a
signal to the vehicle RKE system 18 to unlock the vehicle driver
door. Two quick inputs from the input switch member 24 or 46 could
cause a signal to be generated by the fob 20 or 40 to lock either
the driver's door or all vehicle doors. In either case, a longer,
such as a one second, depressing or touching of the input switch
member 24 or 46 could cause the fob 20 or 40 to briefly activate
the vehicle horn and lights to signal an emergency or to facilitate
location of the vehicle. A three-second input from the input switch
members 24 or 46 could activate the vehicle horn and/or lights for
a longer interval, such as thirty seconds, to denote an emergency,
and a subsequent three-second input would create a "cancel
emergency" function signal. For these implementations in which a
single input switch can activate more than one vehicle function,
the input switch may be referred to as a multifunction input
switch.
[0053] The colors used in the housing 22 and pushbutton 24 may be
decorative, complementary to each other, or otherwise provided in
various hues to coordinate or contrast with the articles on which
they are to be mounted.
[0054] The fob 20 or 40 may be made waterproof or water resistant.
This would enable the fob 20 or 40 to be ordinarily worn by a user
when washing their hands, taking a shower, etc. Also, if the person
goes to the beach or swimming, the vehicle keys must be protected
against theft. It would be convenient to leave the vehicle keys
locked in a vehicle. A waterproof fob 20 or 40 mounted on a ring,
wristband, wristwatch band, necklace or otherwise clipped or
attached to the person's swimsuit would enable the person unlock
their vehicle while safely protecting the vehicle keys from
theft.
[0055] In addition to depressing or a touch activation of the input
switch member 24 or 46, other types of mechanical inputs can be
used in the fob 20 or 40, such as squeezing the outer portion of
the housing 22 or 42 adjacent to an input switch member or flexing
the entire housing 22 or 42. In either fob 20 or 40, inputting
quick push button presses or activation of the fob input switch
member 22 or 46 would cycle the fob control circuit through various
modes, such as UN (unlock driver door only), UNL (unlock all
doors), LCK (lock all doors), TRK or HCH (unlock trunk or hatch),
STR (start vehicle remotely), FND (activate horns and/or lights
briefly to help locate vehicle), EMG (activate horn and/or lights
for a longer period to indicate an emergency), etc.
[0056] Another feature that can be included in either fob 20 or 40
is that when the input switch member or push button 46 is depressed
continuously at any time for at least three seconds, an emergency
situation is assumed and the vehicle horn and lights will be
activated for an extended period of time.
[0057] In the fob 40, a bidirectional RKE communication circuit is
provided between the vehicle RKE system 18 and the fob 40. The fob
40 may also display the selected vehicle control function in the
indicator 48 for a predetermined period of time, such as one to
five minutes, for example. This would assist the user in
remembering whether or not they locked their vehicle. The display
or indictor 48 could also be activated on a low power duty cycle,
such as for one second every five seconds, to reduce power
consumption.
[0058] An optional feature for the fob 20 or 40 is that the fob
control circuit can reset to a default condition in the cycle of
functions, which would be UN, for example only, as the first
function, after the predetermined display time. In this manner, the
user knows that each time spaced use of the fob will have the
function sequence starting at the same default function.
[0059] The indicator 40 may also provide a LOW signal to indicate a
low battery condition. Alternately, the fob 40 may be configured
such that a single, brief depression of the input switch member or
button 46 causes the fob control circuit to cycle through all of
the vehicle control functions sequentially, displaying each one for
a short period of time, such as for about one second, for example,
in the optical indicator 48. Where the desired function is
displayed on the indicator 48, the input switch member 46 is again
depressed, causing the selected vehicle control function to be
activated.
[0060] Referring now to FIG. 3, there is depicted a fob 50 having a
housing 52. In this aspect, the fob 50 also includes an activatable
or depressible input switch member 54, such as a pushbutton similar
to the pushbutton 24 or 46.
[0061] The fob 50 has a second function selector input switch
member 56 in the form of a rotary or thumbwheel switch having
multiple positions which are rotatably selected for one of a
plurality of vehicle functions. The various vehicle control
functions UN, UNL, etc., can be printed on separate positions of
the thumbwheel switch 56. Since at least a portion of the
thumbwheel switch 56 projects outward from the side of the housing
52, at least one vehicle function is displayed at a time. The
thumbwheel 56 may be provided with a mechanical detent in the
housing 52 so as to provide separate, easily distinguishable
positions of the thumbwheel 56. The detent may provide an audible
click to indicate that the thumbwheel 56 has been moved to a new
position while being rotated. The rotary switch 56 may be referred
to as a multifunction input switch.
[0062] In operation, the user rotates the thumbwheel 56 until the
desired vehicle control function is displayed, such as the UNL
function depicted in FIG. 3. The user then briefly depresses the
input switch member 54 which causes the fob 50 to generate the
selected vehicle control function. Optionally, a longer, such as a
three second, button press will always indicate an emergency
function causing the vehicle horn and/or lights to be activated for
an extended period of time.
[0063] The user can merely look at the thumbwheel 56 to see which
vehicle control function will be activated if the input switch
member or button 54 is pressed and, also, can see the last function
that was activated assuming that the thumbwheel 56 position has not
changed since the last activation.
[0064] Fluorescent material can be used on the vehicle function
characters, UN, UNL, etc., or for the background of the thumbwheel
56 surrounding each character so that the switch position is
visible in the dark or low light intensity conditions. The switch
positions can also be provided in different colors to facilitate
rapid identification.
[0065] The fob 50 also depicts an optional output to indicate that
the vehicle control function signal generated by depression of the
input switch member 54 was or was not received by the vehicle RKE
system 18. This requires bidirectional fob capability as shown in
FIG. 14. The output members may be two LED's 58 and 59 mounted on
the housing 52. One of the LED's 58 may emit a green light to
indicate that the vehicle RKE system received the selected vehicle
control signal from the fob 50. A red LED may be used for the
output member 59 to indicate that a signal was not received within
a predetermined time after depression of the input switch member
54.
[0066] Alternately, a single LED may be used as the output member
and briefly illuminated after the button 54 is pressed to indicate
that the vehicle RKE system 18 received the signal. A
non-illumination of the single output member will indicate a
non-reception of the fob generated signal.
[0067] Alternately, the fob 50 may provide an output indication
that the vehicle RKE system 18 received the selected vehicle
control signal or command by providing an audible signal, such as
one or two beeps or a haptic output in the form of vibrations of
the housing 50.
[0068] A low battery condition can be indicated by an occasional
periodic flash from the output member, particularly the red output
member 59, or by a periodic audible beep or haptic vibration.
[0069] A fob 60 is shown in FIG. 4 which includes a housing 62, an
activatable input switch member 64 and a function selector member
66. In this aspect, the vehicle function selector member 66 is in
the form of a slide switch having multiple discrete selectable
positions, each with a vehicle function indicator UN, UNL, etc.,
disposed on the exterior side edge of the housing 62. The exterior
slide member 68 of the slide switch 66 extends outward from the
side edge of the housing 62 to enable easy movement of the slide
member 68 between selected positions. When the desired vehicle
control function is selected, such as LCK, a single brief
depression of the input switch member or button 64 causes the fob
60 to generate and transmit the selected vehicle control function
to the vehicle RKE 18. As in previous aspects, a longer duration
depression of the input switch member 64 will cause the fob 60 to
generate and transmit a signal to the vehicle RKE system 18
indicating involvement in an emergency condition. The slide switch
66 may be referred to as a multifunction input switch 66.
[0070] Referring now to FIG. 5, there is depicted the integration
of a fob 70 with a vehicle key 72. The key 72 may be described as
the key blade 72. Here, the fob is integrated with the key blade 72
and replaces a handle for the key 72. The fob 70 includes a single
pressible input switch member 74, such as the input switch members
24 and 46 described above and shown in FIGS. 1A and 2. The position
of the pressible input switch member 74 on the fob housing 76 may
be different from that shown in FIG. 5.
[0071] The integration of the fob 70 with the key 72 results in a
much smaller fob housing than present day fobs mounted on the end
of a vehicle key blade which greatly facilitates storage of the
integrated fob 70 and key 72 in a key case, or in an immediately
available receptacle or pouch on one's belt, mobile phone holster,
etc. In one aspect, the length of the fob housing 76 that is
integrated with the key blade 72 is at least 20% shorter than the
key blade 72 in the long direction of the key blade 72, and may be
at least 30% shorter, to facilitate storage of the key blade 72 in
a key case, pouch integrated fob 70, etc. These preferences apply
also to the aspects of the fobs depicted in FIGS. 6 and 7. The
other dimensions of the fob 70 are comparable to or shorter than
the length of the fob 70 in the direction of the key blade 72.
Typically, one of the other dimensions, such as the thickness, is
much shorter than the length of the fob 70 in the direction of the
key blade 72, as shown in FIGS. 5, 6 and 7.
[0072] More than one button or input switch member 74 may be
provided on the fob housing 76 for added vehicle control
functionality. A key case or other receptacle could also be
supplied with the key 72 to facilitate attaching and keeping the
key in a conveniently accessible location, such as on the user's
purse or briefcase, cell phone holster, etc.
[0073] Referring now to FIG. 6, there is depicted a fob 70 which
combines the rotary thumbwheel switch 56 shown in FIG. 3 with the
single input switch member feature of the fob 70 mounted on the end
of a vehicle key or blade 72 shown in FIG. 5.
[0074] The fob 80 includes a housing 82 mounted on one end of a
vehicle key 84 and integrated with the key blade. An input switch
member 86 is carried on the housing 82 and is provided with both a
rotary and a depressible signal generating capability. The input
switch member 86 may be rotated between a discrete vehicle control
function signal generating positions, such as UN, LK, TR, printed
or otherwise visible on the exterior surface of the housing 82 by
aligning a pointer 88 formed or printed on the exterior surface of
the input switch member 86 with one of the discrete vehicle
function indicia 85. The pointer 88 may be raised or elevated from
the main surface of the input switch member 86 to facilitate
rotation of the input switch member 86. Alternatively, a separate,
pressible switch which is separately located on the fob housing 82
may be provided to activate the function selected with the rotary
switch 86.
[0075] In use, the input switch member 86 is rotated to align the
pointer 88 with a selected one of the vehicle control functions
indicia 85. Then, the user depresses the input switch member 86
briefly to cause the fob 80 to generate and transmit the selected
vehicle function indicated by the pointer 88 to the vehicle RKE
system 18.
[0076] In a fob 90 mounted, for example, on one end of a key as
shown in FIG. 7, a first input switch member 92 is mounted is
carried on a housing 94. The input switch member 92 may be a single
pressible pushbutton 24 shown in FIG. 1A or the single pushbutton
64 shown in fob 60 and depicted in FIG. 4.
[0077] A slidable vehicle control function switch or input switch
member 96 extends from one side of the housing 94 and is movable
between discrete vehicle control function indicating positions,
such as TR, LK, and UN. As with the fob 80 shown in FIG. 6, the
user moves the actuator 96 to the desired vehicle control function
position 98 and then briefly depresses the input switch member 92
which causes the fob 90 to generate and transmit the selected
vehicle control portion of the vehicle RKE 18.
[0078] Various aspects of the fobs 20, 40, 50, 60, 80 and 90
described above, can be attached or integrated into an article
which is worn or carried by a user, such as a vehicle driver. The
fobs 20, etc., can be mounted on the exterior surface of such
articles by using an adhesive, magnet, clip, snap, sewing,
Velcro.TM., to etc., to facilitate easy use without having to reach
into a pocket or purse, etc. and withdraw the fob before the fob
functions can be selected. A fob attached to a purse, bag,
briefcase, etc., may be in the form of a decorative item, such as,
for example, a flower in which various parts of the flower are the
input switch members and define different fob functions or serve to
removably contain one or more vehicle keys. In some aspects, there
are two levels of integration or attachment possible. For example,
a fob permanently integrated with a vehicle key is one such level,
and such an integrated fob/key that is then temporarily or
removably attached to a belt, cellular telephone holster, etc. is a
second level.
[0079] For example, any of the fobs described above or hereafter
can be integrated with articles that are commonly worn on or
carried by a person, such as a mobile phone holster, mobile phone
housing, purse, belt, wristwatch strap, employee badge, jewelry
(such as a brooch, bracelet, necklace, ring, hairclip, earring),
clothing, shoes, pen or pencil, eyeglass frame, key case, cell
phone headgear or ear bud, handbag, briefcase, etc.
[0080] In some aspects, concealment of the fob by means of an
openable or removable cover may be provided for security purposes.
Concealment may also be effected by camouflage, by attaching or
integrating with a ring or other article mentioned above so that
the fob functionality is not obvious to others, or by attaching a
small fob just inside a sleeve, lapel, handbag, etc. This
facilitates improving the person's appearance, and also is a
security feature, so that the fob is not stolen. Concealment is
facilitated by making the fob small. This is an improvement over
having a conventional fob normally concealed in one's pocket or
handbag. Thus, concealment may be achieved without sacrificing
convenience, thus improving the human machine interface.
[0081] As shown in FIG. 8, the single input switch member fob 20 is
depicted as being mounted on a piece of jewelry, such as a finger
ring 100. The housing 22 can be mounted within the interior of the
raised portion 102 of the ring 100 with only the exterior portion
of the input switch member or pressible button 24 exposed.
[0082] The ring 100 and housing 22 could be at least water
resistant or water proof and would serve a "never lock yourself out
of the car" function. The fob 20 may optionally have a reduced
communication range, such as one or two meters from the vehicle, in
order to conserve battery charge. The fob 20 could be programmed
via a small input plug on the back of the ring, for example, or by
removing the back of the ring 100 to gain access to the interior
mounted electronics of the fob 20. The input plug could also be
used to recharge the fob battery, as described hereafter.
Alternatively, the access to the back of the ring 100 could be used
to change a non-rechargeable battery.
[0083] The small size of the fob, such as fob 20, enables it to be
partially or entirely concealed from view when attached to an
article. One example is shown in FIG. 17. Here the fob 20 is
attached to the back of a pin or broach 250. Concealment may be
accomplished in two ways. First, the broach 250 may be worn in
plain view attached somewhere to one's clothing, purse, etc. by a
pin or clip 252. Typically, it would be worn on the front of a
blouse, sweater, etc. Concealment is accomplished by the fact that
it is not obvious that there is a fob 20, or RFID device, on the
back of the broach 250. The fob 20 could be sold or supplied
already attached to the broach 250. The fob 20 could also be sold
by itself, with a means to attach it to whatever the person wants
to attach it to. This could, for example, be done by providing an
adhesive on one side of the fob 20 with a peel-off cover. When the
cover is peeled off, the person can attach the fob 20 to whatever
article he/she wants to. Alternatively, the broach 250 could be
pinned on the back side of an article of clothing, such as a
sweater or coat near the neckline. Thus, it would not be visible to
others, but could easily be reached for use.
[0084] Another way to conceal the fob 20 would be to make the
housing of the fob 20 itself visible, when attached or worn on an
article, but appear to be something else, such as an earring or tie
tac. The fob 20 would have an attractive shape, color, etc., and
have an attachment for such articles.
[0085] The rotary, multiple position input switch member 86 on the
fob 80, with additional vehicle function positions can be mounted
on the band 110 of a wristwatch 112 as shown in FIGS. 9 and 10. The
rotary input switch member 114 of the fob 116 is mounted in a band
strap, clip, snap, or fixedly mounted on the wristwatch band 110 by
suitable means, including a magnetic attachment, a clip, snap,
Velcro.TM., etc., as shown in FIG. 10. The band 118 has free ends
which wrap around a portion of the wristwatch band 110 and are
secured together by any of the above-described fasteners or
coupling means 30. Alternatively, the fob 116 could replace a
portion of the band 110 and be attached to it at two sides of the
fob 116 or be attached to the band 110 at one side and to the
wristwatch 112 at the other side. Other aspects of fobs with either
a pressible, squeezable, flexural or slidable switch (whether
multifunctional or single functional) as previously described can
also be mounted on a wristwatch band.
[0086] As shown in FIGS. 11A and 11B, a fob 120 is integrated with
or carried on a mobile phone holster or carrying case 122 by
attachment to or as an integral part of the holster 122. The fob
120 includes at least one and, as shown by way of example only in
FIG. 11A, a plurality of input switch buttons arranged in a first
set of input switch buttons 124, 126, and 128, each having a
different pre-assigned vehicle function as shown by the indicia or
characters visible on each input switch member. The input switch
members 124, 126, and 128 may be pressible pushbuttons, touch
switches, or combined into a slide switch similar to the slide
switch 96 or the rotary multi-position input switch member 86. The
input switch members 124, 126 and 128 can be made to be easy to
locate by touch and to use since they may be larger than normal fob
buttons.
[0087] By way of example only, the input switch members 124, 126,
128 activate fob and vehicle functions associated with unlocking
the vehicle driver's door, locking all of the vehicle doors,
starting the engine, respectively.
[0088] A second input switch member 130, which may also include one
or more input switch members, is also integrated with the case or
holster 122. The second input switch member 130 which may be a
pressible button, touch switch, a rotary switch, etc., is provided
in a different color to indicate a different vehicle control
function. By way of example only, in this aspect, pressing the
second input switch member 130 once for a short duration of time
will cause the fob control circuit to switch the functions of the
input switch members 124, 126 and 128 to a second set of functions,
such as unlock vehicle hatch or trunk, start engine, activate horn
and/or lights to locate the vehicle, for example. Pressing the
second input switch member 130 twice in rapid succession, i.e.,
typically no more than one or two seconds between activations,
could activate an optional third level of functions for the input
switch members 124, 126 and 128. These changes in functionality
caused by one or more presses of switch member 130 are effective
only for a short duration, such as about 2 seconds. The switch
members 124, 126, 128, and 130 may have different textures or other
tactile cues, such as raised bumps on or near each switch member
124, 126, etc. to enhance the ability of the user to tell by
feeling the tactile cues with a finger which switch member 124,
126, etc., is being touched.
[0089] The above aspects of the fob which are mounted on the
holster 122 of a cell phone, could also be applied in a separate
housing which is fixedly or removably attached to the flip, swivel
or slide open cover of a cell phone. This still makes the fob
completely separate from the cell phone and does not require any
interaction of the fob and the cell phone buttons or display. In
this case, the fob control circuits are totally separated from the
cell phone circuits.
[0090] Other fob functions may be integrated with the holster 122,
such as alphanumeric, schematic, and pictorial displays, audio
feedback, audio communication, and any indication of vehicle status
and/or location. The fob control circuits including the battery,
signal processor and antenna would be integrated directly in the
holster 122 itself. This make the holster 122 effectively a "stand
alone" RKE fob which can be used even if the cell phone is not
present or in the holster 122.
[0091] The second input switch member 130 can also be associated
with the emergency position such that a long duration pressing of
more than three seconds, for example, will cause the fob 130 to
generate control signals which cause the vehicle horn and/or
headlights to be activated and/or sound and flash on and off for a
long duration of time.
[0092] The aspect of the fob 130 shown in FIG. 11A also includes an
optional key case 132 integrated with or mounted on the mobile
phone holster 122. The key case 132 receives a vehicle ignition key
134 so as to facilitate easy carrying of the mobile phone, vehicle
ignition key 134 and a fob 120 in a single device.
[0093] In FIG. 11B, the key receptacle 132 is depicted as being
integrated on the mobile phone case or holster 122. This
integration may be implemented by integral molding of the key case
132 during the formation of the mobile phone holster 122, or by
means of a separate attachment using Velcro.TM., adhesive, a clip,
a snap, etc.
[0094] In another aspect shown in FIGS. 12A and 12B, a fob 140 is
integrated as part of a key case 142 which may be fixedly or
removably attached to another article, such as a mobile phone case
144. A key case 142 similar to the key case 132 described above and
shown in FIGS. 11A and 11B provides a receptacle for storage of the
vehicle ignition key 146.
[0095] The fob 140 includes a first set of two input switch members
148 and 150, respectively associated with vehicle door unlock and
vehicle door lock functions. A second input switch member 152 is
provided to switch the function of the first input switch member
148 and 150 to a second group of vehicle control functions, such as
start engine, briefly activate horn and lights to locate the
vehicle, unlock vehicle hatch or trunk, etc.
[0096] As shown in FIG. 12B, the key case 142 carrying the
integrated fob 140 and providing a receptacle for the vehicle
ignition key 146 can be attached to an article worn or carried by a
vehicle user, such as a mobile phone case or holster 144 by a
suitable means, such as Velcro.TM. fasteners on opposed surfaces of
the holster 144 and the key case 140, or other attachment means,
such as magnetic, adhesive, engageable clips, snaps, etc.
[0097] In another aspect shown in FIG. 13, a fob 160 is integrated
with a mobile device, such as a cellular telephone 162, by means of
integration with the exterior surface of the battery cover 164 of
the mobile device 162. Alternately, a fob 60 may be integrated with
the back surface of a cell phone 162 by mounting the fob components
in the housing of the cellular telephone 162 or in a separate
member attachable to the back, non-pushbutton, non-display surface
of the cellular telephone 162. All of the various fob aspects
described above can be integrated with the battery cover 164
including one or more input switch members 166, 168, etc., along
with keyless ferrite antennas 170, a display 168, a key fob ASIC
172, etc. Power for the fob 160 is obtained by connecting the fob
control circuit to the battery cover contacts 174 and 176 which
connect the battery carried in the cover 164 to the mobile device.
This provides a significantly greater amount of power to the fob
160 then with a battery mounted in the fob and enables a longer
range of communication between the fob 160 and the vehicle RKE.
[0098] A UHF antenna may also be provided in the battery cover 164
as part of the fob 160.
[0099] The display of the fob 160 can be implemented with E-Ink or
OLED technology in order to support the flat shape of the battery
cover and to save energy. Foil buttons can be used as the input
switch members for a convenient but flat dimension of the input
switch member surfaces, which are used for the normal operation of
the fob, such as locking and unlocking vehicle doors and the
trunk.
[0100] All of the fobs 20, 40, etc., described above may have a
basic control circuit shown in FIG. 14. A control, such as an ASIC
180, receives inputs from one or more antennas 182 and one or more
input switch members all denoted by reference number 184. A
transceiver 186, or a separate transmitter and a separate receiver,
is connected to the control 180 for transmitting or receiving
signals to and from the vehicle RKE 18. A display 188 may be
connected to the control 180 by an internal bus system 190.
[0101] FIG. 14 depicts electric power being supplied to the fob
control
[0102] 180 and other circuit elements by means of the mobile device
battery contacts 174 and 176 shown in FIG. 13. Giving consideration
to frequency interference and communication distance limitations,
electric power may be supplied to any of the fobs 20, 40, etc., by
means of a replaceable battery 192, FIG. 14, which can be removed
from the fob housing through a replaceable cover mounted on the fob
housing. The battery 192 may also be a rechargeable battery used to
power any of the fobs 20, 40, etc. Such a battery 192 requires a
recharger 194 coupled to a power source 196 which can be separate
from the fob housing so that the battery 192 can be recharged
externally of the fob and then reinserted into the fob.
Alternately, the rechargeable battery 192 mounted in the fob
housing, such as the fob housing 62 shown for the fob 60, may have
a solar cell 200 mounted on the exterior thereof forming the power
source 196 which generates electricity from sunlight, lamps, etc.,
to recharge the battery 192 within the fob housing 62. The solar
cell 200 could activate the battery recharging circuit any time the
ambient light level is sufficiently high. The solar cell 200 can
also be a group of series connected solar cells to provide a larger
output voltage. A plug 202, shown by way of example in FIG. 3, may
also be mounted on the fob housing 52 to provide an electrical
connection to an external power source to recharge the battery
mounted within the fob housing 52.
[0103] Further, power may be supplied from an inductive secondary
coil 204 shown by way of example in FIG. 2. The secondary coil 204
is mounted within the fob housing 42 and has current induced
therein when another current carrying primary transformer coil, not
shown, is placed in close proximity to the fob housing.
[0104] In place of a rechargeable battery 192, a chargeable
capacitor could also be employed.
[0105] The battery 192 may optionally be recharged using other
energy scavenging methods. For example, rechargeable power may be
mechanical energy derived from mechanical vibrations of the fob
housing.
[0106] The battery 192 can take the form of a battery in a cellular
telephone earbud or headgear. Such batteries are typically
rechargeable batteries and need to be periodically recharged. The
earbud or cellular telephone headgear power source could be coupled
to the fob by mounting the fob on the headgear and directly
coupling the headgear power source to the fob.
[0107] The fobs 20, 40, etc., may also be provided with optional
features. A radio frequency identification device (RFID) 260 shown
in FIG. 18, may be integrated with any of the fobs 20, 40, etc., so
as to cause the doors of a vehicle to automatically unlock as the
person approaches the vehicle (when the vehicle senses the
proximity of the RFID device) and automatically lock as the person
walks away from the vehicle. The RFID feature could free up or
replace one or two input switch button(s) deployed on the fob to
enable additional vehicle control functions to be provided on the
fob.
[0108] An RFID device 260 may also or alternately be used by the
vehicle ignition system in conjunction with a vehicle immobilizer
function.
[0109] In one variation, an RFID device 260 may be used which has
no user accessible input switches. In this case, the RFID device
260 locks and unlocks the vehicle doors. The RFID device 260 may
also satisfy a vehicle immobilizer circuit, so that the vehicle may
be started by the bearer of the device pushing an ignition start
button in the vehicle. Other means for inputting data to the RFID
device by service personnel may also be employed in order to
program the RFID to operate with a specific vehicle.
[0110] The RFID device 260 can be directly powered by the vehicle
antenna for short range, less than one meter, transmissions. So,
the RFID device 260 could be powered from that very short distance
using power from the vehicle antenna 17, FIG. 18, coupled in
through the fob antenna. In a short range mode, the fob itself, and
just the RFID device 260, could be powered that way. This might be
useful for some very small, back-up fobs, where the size can be
reduced by not having to have a battery. As an emergency back-up
fob, the inconvenience of having to be very close to the vehicle
for it to work is acceptable. Alternatively, a battery could be
used to power it. If the battery is non-rechargeable, then the
housing could be designed so that it is replaceable. This might,
for example, facilitate making the fob waterproof.
[0111] For the aspect in which there is only an RFID device 260 and
no user accessible switches, then the circuit shown in FIG. 18 can
be used. In this aspect, power from the vehicle RKE antenna 17 is
received by the RFID antenna 262 for powering the RFID transceiver
264 and the RFID circuit 266.
[0112] For the aspect in which a fob with one or more switches is
used, AND there is an RFID device 260, then the circuits of FIGS.
14 and 18 can be merged, so that there is only one battery 192, one
recharge circuit 194, and one power source 196.
[0113] As described above, in conjunction with the aspect of the
fob 50 shown in FIG. 3, either of the output devices, such as LEDs
58 or 59, may be pulsed on a periodic basis to indicate a low fob
battery level. Alternately, when the fob 50 senses a low battery
level, it can send a signal to the vehicle RKE system 18, which,
through the vehicle controller, can result in an alarm message
being displayed on the vehicle instrument cluster to indicate a low
fob battery.
[0114] The second input switch member 130 in FIG. 11A or 140 in
FIG. 12A may also be used to control devices external from a
vehicle, such as a garage door, house interior and exterior
lighting, house alarms, etc. The second input switch member 130 or
152 can be put in a learn mode by a coded sequence of depressions
so that when a garage door opener is activated near the fob, the
fob learns the correct code to transmit to the garage door to open
and close the garage door. Control of the garage door, etc., could
also be implemented by input switch members on the other fobs
discussed above.
[0115] In the aspects of the fob described above which are used
with a vehicle key case 132, shown in FIG. 11A or 142 shown in FIG.
12A, a sensor could be employed in the key case 132, 142 or on the
article to which the key case 132, 142 is mounted, i.e., the phone
holster 122 or 142, to detect whether or not the key 134, 146 is in
the case 132, 142 and give an indication when the key 134, 146 is
removed from the case 132, 142. This indication may be audible or
visible through a light, or by a vibration of the fob housing. The
sensor, associated circuitry and sound, vibration or illumination
generator could be integrated with either of the vehicle key 134,
146, or the key case 132, 142. The sensor could be, for example, an
optical, a capacitive, a conductive, a magnetic, or an RFID tag
sensor.
[0116] As shown in FIG. 15, a remote keyless entry fob denoted
generally by reference number 220 may be integrated into a credit
card or debit card 222 or a card having an overall shape of a
credit or debit card 222. Various input switch members, such as
thin film switches 224, 226, 228, 230, 232, and 234, may be mounted
on the card 222 and provided with exterior indicia to designate the
associated control function, such as respectively UNLK, LOCK, TRNK,
STRT, EMER, and GARG.
[0117] An additional input switch member 236 labeled FUNC, by
example, may be programmable for user preference or may temporarily
assign additional features for a short time to the other input
switch members 222, 224, etc., when it is activated.
[0118] A passive or active RFID device to unlock or lock the
vehicle doors and allow the driver to satisfy the vehicle
immobilizer system and to start a vehicle is also mounted in the
card 222. As an alternative, the credit or debit card 222 may
contain an active or passive RFID device to unlock or lock the
vehicle doors and allow the driver to satisfy the vehicle
immobilizer system and to start a vehicle without the other
functionality of the card 222. That is the card 222 would not have
manual inputs to control the vehicle or a display.
[0119] For the RFID functions, the driver may need to put his or
her hand on or near a vehicle door handle so that the driver intent
may be sent. Once inside the vehicle, the driver needs to press a
vehicle start button. An antenna 240 shown in dashed lines on the
card 222 is provided for transmitting pulse signals from the fob
220 to the vehicle RKE system. Other antennas may also be provided
within the card 222 for different communication ranges, etc.
[0120] For use as a credit or debit card, the card 222 may be
thinner at the bottom portion containing a magnetic stripe 244 to
enable the card 222 to be easily passed through existing credit
card magnetic stripe readers.
[0121] The card 222 supplied which may include a battery and/or
solar cells 238. The onboard battery may be powered by the solar
cells 238, or recharged by the solar cells 238 or an inductive coil
as described above and shown on FIG. 3 or FIG. 2 as a secondary
coil of a transformer.
[0122] A display 246 may also be provided on the card 222 for
displaying various information, such as the last key fob function
used, whether the last signal sent by the fob 222 to the vehicle
was received by the vehicle (bidirectional communication where a
receiver or transceiver is required) a battery-charge state,
etc.
* * * * *